rrd_xport

(PECL rrd >= 0.9.0)

rrd_xportExports the information about RRD database.

Description

array rrd_xport ( array $options )

Exports the information about RRD database file. This data can be converted to XML file via user space PHP script and then restored back as RRD database file.

Parameters

options

Array of options for the export, see rrd xport man page.

Return Values

Array with information about RRD database file, FALSE when error occurs.

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mrezahamedany
2 months ago
an example that shows the usage of this method ( tested in php version 5.6.30 )

class Rrd{
    public function getData($id , $start , $end)
    {
        $step = 300 ;
        $rrdFile ="/path/to/file/'.$id.rrd";

        try{
            $options = ["--start", $start , "--end", $end ,"-- step",$step,"DEF:out=$rrdFile:name:AVERAGE", "XPORT:out:test"];
            $result = rrd_xport($options);
            $datas = $result['data'][0]['data'];
            foreach($datas as $data => $value){

                if( is_nan($value) === true ) $value = 0 ;
                    $output[] = [$data=>$value] ;
            }
            return json_encode($output);

        }catch (Exception $e){

            dd($e->getMessage());
        }

    }
}
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